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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490808Generated: October 29, 2026

1-Hydroxybenzotriazole → N-Butyl-2-[3-(2,2-dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]-N-propylacetamide

https://huagongshe.com/reaction/490808

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-PropylbutylamineHCID 88399—
Reactant[3-(2,2-Dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]acetic acidHCID 57675531—
Solvent1,2-DichloroethaneHCID 11—
SolventDimethylformamideHCID 6228—
ProductN-Butyl-2-[3-(2,2-dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]-N-propylacetamideHCID 11740930—

Reaction Conditions

Temperature45 °C

Reaction Steps

Weigh 29.0 mg [3-(2,2-dimethylpropanoyl)-6-methoxy-1H-indazol-1-yl]acetic acid, 23.0 mg HOBt, and 38.3 mg EDC into a 13×100 mm screw cap tube. Add 17.3 mg N-propylbutylamine followed by 1 mL DMF and 45.2 mg DIEA in that order. The mixture was stirred at 45° C. for two hours and purified by RP-HPLC using 65-100% MeCN gradient. The pure product fractions were pooled and lyophilized to give the title compound as white solid. LC-MS: 4.20 min. (m/Z=388.3, 410.3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528163B2
Source datasetuspto-grants-2009_05
ORD IDord-6a026c32192a43d69d32169d71ab4fd6
Source noteuspto-grants-2009_05